A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media
A cationic Ru(II) complex <b>Ru1</b> with 5-phenyl-2,2′-bipyridine as ligand was synthesized and fully characterized. <b>Ru1</b> exhibits significant aggregation-induced phosphorescent emission (AIPE) activity in THF/H<sub>2</sub>O. The AIPE property of <b>R...
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MDPI AG
2025-01-01
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| author | Ruimin Chen Qinglong Zhang Liyan Zhang Chun Liu |
| author_facet | Ruimin Chen Qinglong Zhang Liyan Zhang Chun Liu |
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| description | A cationic Ru(II) complex <b>Ru1</b> with 5-phenyl-2,2′-bipyridine as ligand was synthesized and fully characterized. <b>Ru1</b> exhibits significant aggregation-induced phosphorescent emission (AIPE) activity in THF/H<sub>2</sub>O. The AIPE property of <b>Ru1</b> has been successfully used to detect picric acid (PA) in aqueous media. <b>Ru1</b> exhibits a sensitive luminescence quenching response to PA, with a high quenching constant (<i>K</i><sub>SV</sub> = 2.5 × 10<sup>4</sup> M<sup>−1</sup>) and a low limit of detection (LOD = 91 nM). In addition, <b>Ru1</b> demonstrates high sensitivity and selectivity for detecting PA in different common water samples. The UV-vis absorption spectra and luminescence lifetime of <b>Ru1</b> show an obvious change after the addition of PA into the <b>Ru1</b> samples, indicating that the quenching process is a combination of dynamic and static quenching. The density functional theory calculations indicate that the mechanism for the detection of PA is photo-induced electron transfer. |
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| institution | Kabale University |
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| language | English |
| publishDate | 2025-01-01 |
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| spelling | doaj-art-5eb673a39d8d440ab440f5a276811a0d2025-01-24T13:26:54ZengMDPI AGChemosensors2227-90402025-01-011311410.3390/chemosensors13010014A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous MediaRuimin Chen0Qinglong Zhang1Liyan Zhang2Chun Liu3State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, ChinaState Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, School of Chemical Engineering, Dalian University of Technology, Dalian 116024, ChinaA cationic Ru(II) complex <b>Ru1</b> with 5-phenyl-2,2′-bipyridine as ligand was synthesized and fully characterized. <b>Ru1</b> exhibits significant aggregation-induced phosphorescent emission (AIPE) activity in THF/H<sub>2</sub>O. The AIPE property of <b>Ru1</b> has been successfully used to detect picric acid (PA) in aqueous media. <b>Ru1</b> exhibits a sensitive luminescence quenching response to PA, with a high quenching constant (<i>K</i><sub>SV</sub> = 2.5 × 10<sup>4</sup> M<sup>−1</sup>) and a low limit of detection (LOD = 91 nM). In addition, <b>Ru1</b> demonstrates high sensitivity and selectivity for detecting PA in different common water samples. The UV-vis absorption spectra and luminescence lifetime of <b>Ru1</b> show an obvious change after the addition of PA into the <b>Ru1</b> samples, indicating that the quenching process is a combination of dynamic and static quenching. The density functional theory calculations indicate that the mechanism for the detection of PA is photo-induced electron transfer.https://www.mdpi.com/2227-9040/13/1/14Ru(II) complexAIPE activitypicric acidaqueous mediaphoto-induced electron transfer |
| spellingShingle | Ruimin Chen Qinglong Zhang Liyan Zhang Chun Liu A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media Chemosensors Ru(II) complex AIPE activity picric acid aqueous media photo-induced electron transfer |
| title | A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media |
| title_full | A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media |
| title_fullStr | A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media |
| title_full_unstemmed | A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media |
| title_short | A Phenyl-Modified Aggregation-Induced Phosphorescent Emission-Active Cationic Ru(II) Complex for Detecting Picric Acid in Aqueous Media |
| title_sort | phenyl modified aggregation induced phosphorescent emission active cationic ru ii complex for detecting picric acid in aqueous media |
| topic | Ru(II) complex AIPE activity picric acid aqueous media photo-induced electron transfer |
| url | https://www.mdpi.com/2227-9040/13/1/14 |
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